<template>
  <view>
    <my-searchs :radius="20" @search="searchHandler"></my-searchs>
    <view class="scroll-view-container">
      <!-- 左侧的滚动视图区域 -->
      <scroll-view class="left-scroll-view" scroll-y :style="{height: wh + 'px'}">
        <view :class="['left-scroll-view-item',index === active ? 'active' : '']" v-for="(item,index) in cateList" :key="index" @click="activeChange(index)">{{item.cat_name}}</view>
      </scroll-view>
      <!-- 右侧的滚动视图区域 -->
      <scroll-view class="right-scroll-view" scroll-y :style="{height: wh + 'px'}" :scroll-top="scrollTop">
        <view class="cate-lv2" v-for="(item2,index2) in cateLevel2" :key="index2">
          <view class="cate-lv2-title">/ {{item2.cat_name}} /</view>
          <view class="cate-lv3-list">
            <view class="cate-lv3-item" v-for="(item3, index3) in item2.children" :key="index3" @click="gotoGoodsList(item3)">
            <image :src="item3.cat_icon"></image>
            <text>{{item3.cat_name}}</text>
            </view>
          </view>
        </view>
      </scroll-view>
    </view>
  </view>
</template>

<script setup>
import {ref} from "vue"
import {onLoad} from "@dcloudio/uni-app"

let wh = ref(0)
let cateList = ref([])
let active = ref(0)
let cateLevel2 = ref([])
let scrollTop = ref(0)

onLoad(async () => {
  const sysInfo = uni.getSystemInfoSync()
  wh = sysInfo.windowHeight - 50
  
  const {data} = await uni.$http.get("/api/public/v1/categories")
  if(data.meta.status !== 200) return uni.$showToast()
  cateList.value = data.message
  cateLevel2.value = data.message[0].children
  console.log(cateList.value)
})

function activeChange(i) {
  active.value = i
  cateLevel2.value = cateList.value[i].children
  scrollTop.value = scrollTop.value === 0 ? 1 : 0;
}
function gotoGoodsList(item3) {
    uni.navigateTo({
      url: '/subpkg/goods_list/goods_list?cid=' + item3.cat_id
    })
};
//捜索
function searchHandler() {
  uni.navigateTo({
    url: "/subpkg/search/search"
  })
}
</script>

<style scoped lang="scss">
.scroll-view-container {
  display: flex;
  .left-scroll-view {
    width: 120px;
    .left-scroll-view-item {
      line-height: 60px;
      background-color: #f7f7f7;
      text-align: center;
      font-size: 12px;
      &.active {
        background-color: #ffffff;
        position: relative;
        &::before {
          content: "";
          display: block;
          width: 3px;
          height: 30px;
          background-color: #c00000;
          position: absolute;
          left: 0;
          top: 50%;
          transform: translateY(-50%);
        }
      }
    }
  }
}
  .right-scroll-view {
    .cate-lv2-title {
      font-size: 12px;
      font-weight: bold;
      text-align: center;
      padding: 15px 0;
    }
    .cate-lv3-list {
      display: flex;
      flex-wrap: wrap;
      .cate-lv3-item {
        width: 33.33%;
        margin-bottom: 10px;
        display: flex;
        flex-direction: column;
        align-items: center;
        
        image {
          width: 60px;
          height: 60px;
        }
        text {
          font-size: 12px;
        }
      }
    }
  }
</style>
